Apparatus for Fixing Saw Blade and Knife Plate of Saw Grinding Machine

ABSTRACT

An apparatus for fixing a saw blade and a knife plate of a saw grinding machine, the apparatus comprise a driving device including an axis; and a fixture plate, which has a first end and a second end, including a connective hole coupled to the driving device and a coupled portion defined at the first end thereof; wherein the saw blade is pivotally connected to the axis of the driving device, with the saw blade and the fixture plate moved with respect to the driving device simultaneously; wherein the knife plate is coupled to the coupled portion of the fixture plate and includes a blocked side formed on a side thereof, with a vertical distance between the blocked side and the saw blade maintained to be fixed.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an apparatus for fixing a saw blade and a knife plate of a saw grinding machine and, more particularly, to an apparatus adapted for fixing a saw blade and a knife plate of a saw grinding machine and able to move simultaneously with the saw blade and the knife plate.

2. Description of the Related Art

Disclosed in China Patent Publication No. 200620120829.6 is a quick-release structure for a splitting unit of a saw grinding machine, the quick-release structure includes a split plate, a fixture base, a hexagonal bolt and a quick-release handle. A front end of the handle includes an engaged portion wedged to an engaged end of the hexagonal bolt. A screw is inserted through the engaged portion of the handle and engages with a screw hole of the hexagonal bolt as to couple the handle to the engaged end of the hexagonal bolt.

The split plate is fixed to a groove of the fixture base and detachable from the fixture base by operating the quick-release structure. However, during a saw blade of the saw grinding machine is moved with respect to the saw grinding machine, a vertical distance between the saw blade and the spilt plate can not maintain to be fixed because the spilt plate is fixed. Hence, wood sheet materials cannot be split wood accurately.

SUMMARY OF THE INVENTION

Accordingly, the object is achieved by providing an apparatus for fixing a saw blade and a knife plate of a saw grinding machine, the apparatus comprises a driving device and a fixture plate.

The knife plate and the saw blade can be moved with the fixture plate simultaneously as to maintain a vertical distance between the knife plate and the saw to be fixed. Therefore, the knife plate can split wood accurately. The knife plate includes a coupled portion having a thickness as to firmly couple with two projections formed on a coupled portion of the fixture plate.

Other advantages and features of the present invention will become apparent from the following descriptions referring to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be described through detailed illustration of three embodiments referring to the drawings.

FIG. 1 is a perspective view of an apparatus for fixing a saw blade and a knife plate of a saw grinding machine according to the preferred embodiment of the present invention.

FIG. 2 is an exploded view of the apparatus shown in FIG. 1.

FIG. 3 is a cross-sectional view taken along 3-3 in FIG. 1.

FIG. 4 is a cross-sectional view taken along 4-4 in FIG. 3.

FIG. 5 is a cross-sectional view taken along 5-5 in FIG. 3.

FIG. 6 is a cross-sectional view similar to FIG. 4, illustrating that the guiding portion is moved along the adjustment trough.

FIG. 7 is a cross-sectional view similar to FIG. 6, illustrating that the guiding portion is moved to the bottom of the adjustment trough.

FIG. 8 is another cross-sectional view similar to FIG. 7.

FIG. 9 is a perspective view of the apparatus shown in FIG. 1 installed to a saw grinding machine.

FIGS. 10 a and 10 b are cross-sectional views of the apparatus shown in FIG. 1, illustrating a wood plate being cut by the saw blade.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

With reference to FIGS. 1 through 5 and 9, they show that an apparatus for fixing a saw blade 30 and a knife plate 40 of a saw grinding machine 60, the apparatus includes a driving device 10 and a fixture plate 20.

The driving device 10 includes a base member 11 coupled to the saw grinding machine 60 and having a lift/lower trough 111, a pivot 112 and an arcuate adjustment trough 113, an adjusting block 12 and a driving element 13. A pivotal portion 121 is provided at an end of the adjusting block 12 and pivotally connected to the pivot 112 of the base member 11 so that the adjusting block 12 is able to pivot with respect to the base member 11. An arcuate teethed portion 122 and a connective base 123 are provided at another end of the adjusting block 12 opposite to the pivotal portion 121. The teethed portion 122 is engaged with a bolt (not shown) to adjust the adjusting block 12 to pivot and the connective base 123 corresponds to the lift/lower trough 111. The driving element 13 includes an axis 131 inserted through and pivotally connected to the connective base 123.

The fixture plate 20 is pivotally connected to the connective base 123 and includes a connective hole 21, a coupled portion 22 and a guiding portion 23. In this case, the fixture plate 20 is preferably L-shaped. Hence, the coupled portion 22 and the guiding portion 23 are respectively provided at two ends of the fixture plate 20 and approximately perpendicular to each other, and the connective hole 21 is provided at a connection of the coupled portion 22 and the guiding portion 23.

The connective hole 21 is mounted on a side of the connective base 123 of the driving device 10. A mounted ring 211 is provided between the connective hole 21 and the connective base 123 as to pivot the fixture plate 20 with respect to the connective base 123. A base disc 201 is provided to an exterior side of the connective hole 21 and engaged with the connective base 123 via numbers of fixture elements 202 for covering on the exterior side of the fixture plate 20 so that the fixture plate 20 is moved with the driving device 10 simultaneously.

A distance between the coupled portion 22 and the connective hole 21 is larger than a distance between the guiding portion 23 and the connective hole 21. Two projections 221 project from a side of the coupled portion 22 opposite to the driving device 10.

The guiding portion 23 is slideably disposed in the adjustment trough 113 of the base member 11 so that the adjustment trough 113 enables to guide the connective hole 21 be positioned in the same horizontal position as the coupled portion 22. A through-hole 231 is defined at the guiding portion 23 and corresponds to the adjustment trough 113 of the base member 11. A limited element 232 is adapted to be inserted through the through-hole 231 and the adjustment trough 113 and connects the fixture plate 20 to the base member 11 for guiding the fixture plate 20 in position.

The saw blade 30 includes an axial hole 31 installed to the axis 131 of the driving device 10 so that the driving device 10 drives the saw blade 30 to process a cutting operation. The axial hole 31 of the saw blade 30 and the connective hole 21 of the fixture plate 20 are co-axial and the saw blade 30 and the fixture plate 20 are parallel to each other.

The knife plate 40 is fixed to the coupled portion 22 of the fixture plate 20 and includes a coupled portion 41 having a slot 411. The coupled portion 41 has a thickness as to firmly engage the slot 41 with the two projections 221 of the coupled portion 22 of the fixture plate 20. And the knife plate 40 is fixed to the fixture plate 20 via engagements of two engagement units 412 with the two projections 221. A blocked side 42 is formed on a side of the knife plate 40 and corresponds to the outer periphery of the saw blade 30. A vertical distance between one position on the blocked side 42 and the saw blade 30 would be maintained to be fixed by the knife plate 40 fixed to the coupled portion 22 of the fixture plate 20.

Referring to FIGS. 6 through 9, the adjusting block 12 can drive the fixture plate 20 and the saw blade 30 to move simultaneously as to lift/lower the saw blade 30 with respect to the saw grinding machine 60. While the adjusting block 12 is pivoted in the lift/lower trough 111 of the base member 11, the guiding portion 23 guides the connective hole 21 and the coupled portion 22 of the fixture plate 20 to be maintained in the same horizontal position. The saw blade 30, adjusting block 12 and the fixture plate 20 move simultaneously with one another and the knife plate 40 is fixed to the coupled portion 22 of the fixture plate 20. So that the knife plate 40 moves simultaneously with the fixture plate 20. So that the vertical distance between the blocked side 42 and the saw blade 30 would maintain to be fixed by fixing the knife plate 40 to the coupled portion 22 of the fixture plate 20.

The base member 11 is installed to the saw grinding machine 60 and the saw blade 30 is able to be lifted or lowered with respect to a platform 61 of the saw grinding machine 60. A vertical distance between the knife plate 40 and the saw blade 30 can be fixed. Therefore, the knife plate can split wood accurately.

Referring to FIGS. 10 a and 10 b, they show that a wood plate W is cut by the saw blade 30. While the saw blade 30 moves to cut the wood plate W, the knife plate 40 is driven to move with respect to the saw blade 30. Thus, the cut wood plate W can be divided by the knife plate 40 easily. Further, because the knife plate 40 and the saw blade 30 are able to move simultaneously in use, a vertical distance d between the knife plate 40 and the saw blade 30 would be fixed, no matter which position the saw blade 30 moves to.

While several embodiments of the invention have been shown and described, it will be apparent to those skilled in the art that modifications may be made therein without departing from the scope and spirit of the present invention. 

1. An apparatus for fixing a saw blade and a knife plate of a saw grinding machine, the apparatus comprising: a driving device including an axis; and a fixture plate, which has a first end and a second end, including a connective hole coupled to the driving device and a coupled portion defined at the first end thereof; wherein the saw blade is pivotally connected to the axis of the driving device, with the saw blade and the fixture plate moved with respect to the driving device simultaneously; wherein the knife plate is coupled to the coupled portion of the fixture plate and includes a blocked side formed on a side thereof, with a vertical distance between the blocked side and the saw blade maintained to be fixed.
 2. The apparatus as claimed in claim 1 further comprising numbers of projections projecting from a side of the coupled portion opposite to the driving device; wherein the knife plate includes a coupled portion having a slot, with the slot coupled to the projections.
 3. The apparatus as claimed in claim 2 further comprising numbers of engagement units to engage the coupled portion of the knife plate with the projections, with the coupled portion of the knife plate having a thickness.
 4. The apparatus as claimed in claim 1 wherein the fixture plate includes a guiding portion and the driving device includes an adjustment trough, with the guiding portion slideably disposed in the adjustment trough to guide the connective hole of the fixture plate be positioned in the same horizontal position as the coupled portion of the fixture plate.
 5. The apparatus as claimed in claim 4 wherein the guiding portion of the fixture plate is defined at the second end of the fixture plate and the connective hole is provided at a connection of the coupled portion and the guiding portion.
 6. The apparatus as claimed in claim 5 wherein the coupled portion and the guiding portion are approximately perpendicular to each other, with the fixture plate being L-shaped.
 7. The apparatus as claimed in claim 6, wherein a distance between the coupled portion and the connective hole is larger than a distance between the guiding portion and the connective hole.
 8. The apparatus as claimed in claim 4 wherein the guiding portion of the fixture plate forms with a through-hole corresponding to the adjustment trough of the driving device, with a limited element inserted through the through-hole and the adjustment trough.
 9. The apparatus as claimed in claim 1 further comprising an axial hole formed on the saw blade and mounted on the axis of the driving device, with the axial hole and the connective hole of the fixture plate being co-axial, and with the saw blade and the fixture plate being parallel to each other.
 10. The apparatus as claimed in claim 1 wherein the driving device includes a base member coupled to a platform of the saw grinding machine, an adjusting block, which has a pivotal portion pivotally connected to the base member and a connective base opposite to the pivotal portion, and a driving element, with the axis defined at the driving element and inserted through and pivotally connected to the connective base.
 11. The apparatus as claimed in claim 10 wherein the base member includes a lift/lower trough and a pivot, with the connective base corresponding to the lift/lower trough, and with the pivot connected to the pivotal portion of the adjusting block.
 12. The apparatus as claimed in claim 10 wherein the connective hole of the fixture plate mounted on a side of the connective base of the driving device and includes a mounted ring provided between the connective hole and the connective base; wherein the fixture plate includes a base disc provided to an exterior side of the connective hole and engaged with the connective base via numbers of fixture elements. 